For Cards Mexico payment method there aren’t any test data available, but you can see how it works with the payment flow given below.
Cards Mexico Payment Flow
The customer enters his Email Address, Name and CURP/RFC/IFE. Please note that for Mexico the Customer Social Security Number parameter consists of CURP/RFC/IFE. For more information about the CURP/RFC/IFE please click here.
The customer enters his email address, name and card details: Card Number, CVC (CSC) and Expiration Date. He finalizes the payment by using the Pay button.
The customer receives a message that the payment has been completed correctly.
Upon completion of the payment flow the customer is redirected back to your ReturnURL.